- dovecot - dovecot.org

Re: [Dovecot] Lots of pop3-logins
by V S Rao 26 Jun '09

26 Jun '09

> > Doing a "ps aux" on my Slackware box, I have approx 100 PID's of "pop3-login's going on. This is a production mail server, but it is getting VERY low traffic. In fact, only 3 people can "pop3" into it. I've check their e-mail clients, and they are not checking mail any more often than every 5 minutes. > > > > This is a new installation and I've had the server up and running since Sunday. If it matters, I'm using Postfix for the MTA and using the Dovecot SASL library to AUTH SMTP. > > > > Is this a cause for concern? Why does Dovecot need this many processes? > > > > >> Because dovecot preforks the *-login processes to speed-up the login. > > >> No need to worry. > > 100 login sessions for just 3 connections? That is not right, no matter what. >> No, login_processes_count matters. How? If my understanding is correct, you have extra 3 login processes created to cater to new connections. So with only 3 POP3 users, why should so many login processes be spawned? I can understand 10-15. But 100 definitely indicates either the processes are not dying or something else happening on the system which is causing such high number of login processes. The system definitely needs to be checked for some kind of attack, a rogue process running on the system or something else. Regards --Rao

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[Dovecot] dovecot-acl-list not honouring owner / permissions that are set on dovecot-shared
by Stuart Rowan 25 Jun '09

25 Jun '09

Hi, I've just upgraded our dovecot installation from 1.0.15 to 1.1.13. This went smoothly and just worked -- thank you very much for writing such a high performance and robust piece of software. However, we have a shared mailbox that people can subscribe to. After upgrading to 1.1.13 ... dovecot tries to create a dovecot-acl-list file in the top level of this ... but it creates it chown'd to the first logged in user with a umask of -rw- --- --- A. -rw------- 1 userA shared 17179 2009-06-25 11:10 /home/imapshared/SharedMaildir/dovecot-acl-list Everyone else who tried to access the shared folder (and hence dovecot tried to read / update the dovecot-acl-list file) caused an error to be logged to the error.log I changed the permissions (once I realised what had gone wrong) to match those on the dovecot-shared file and all was well as everyone can now read/update it. B. -rw-rw---- 1 imapshared shared 17179 2009-06-25 11:19 /home/imapshared/SharedMaildir/dovecot-acl-list -rw-rw---- 1 imapshared shared 0 2008-04-25 13:20 /home/imapshared/SharedMaildir/dovecot-shared Also from time to time the permissions seem to get changed back on dovecot-acl-list inexplicably to those in situation A -- usually following a restart of dovecot but I haven't been able to reproduce this reliably. This seems like a bug to me ... do you agree / is there a sensible work-around? The declaration in dovecot.conf for the shared namespace sets user specific CONTROL and INDEX locations so that users can independently subscribe to folders and mark messages as read on an individual basis. Many thanks, Stu.

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Re: [Dovecot] Lots of pop3-logins
by V S Rao 25 Jun '09

25 Jun '09

> Hello, > > Doing a "ps aux" on my Slackware box, I have approx 100 PID's of "pop3-login's going on. This is a production mail server, but it is getting VERY low traffic. In fact, only 3 people can "pop3" into it. I've check their e-mail clients, and they are not checking mail any more often than every 5 minutes. > > This is a new installation and I've had the server up and running since Sunday. If it matters, I'm using Postfix for the MTA and using the Dovecot SASL library to AUTH SMTP. > > Is this a cause for concern? Why does Dovecot need this many processes? > >> Because dovecot preforks the *-login processes to speed-up the login. >> No need to worry. 100 login sessions for just 3 connections? That is not right, no matter what. There is definitely some issue. Once the load increases the system will start timing out on POP3 connections or other network connections, such as IMAP, SSH etc. Better check out the system logs, utilization etc. for any abnormal values. Regards Rao

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[Dovecot] Lots of pop3-logins
by Rodman Frowert 25 Jun '09

25 Jun '09

Hello, Doing a "ps aux" on my Slackware box, I have approx 100 PID's of "pop3-login's going on. This is a production mail server, but it is getting VERY low traffic. In fact, only 3 people can "pop3" into it. I've check their e-mail clients, and they are not checking mail any more often than every 5 minutes. This is a new installation and I've had the server up and running since Sunday. If it matters, I'm using Postfix for the MTA and using the Dovecot SASL library to AUTH SMTP. Is this a cause for concern? Why does Dovecot need this many processes? Thanks! Rodman

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Re: [Dovecot] deliver does not update maildirsize
by ftriboix＠falcon-one.com 24 Jun '09

24 Jun '09

Hi Timo, Thank you very much for replying! > What does your configuration look like now? v1.1 has different quota > configuration. Is the problem only with deliver, or is imap also not > updating quota? And dovecot -n unfortunately doesn't show > protocol lda {} contents, so could you show them too? And finally, > enable mail_debug=yes and paste its logs when a message is delivered. mail_debug was already enabled, actually. maildirsize is not updated with imap now. If I logged in imap with dovecot 1.0.13, maildirsize was updated. This is not the case anymore with dovecot 1.1.16 ... I am actually realizing something. Do I need to add the "quota" plugin in the "protocol lda {}" section of dovecot.conf? Please find the configuration information below: # dovecot -n # 1.1.16: /etc/dovecot-1.1.16/dovecot.conf # OS: Linux 2.6.27.10-grsec-xxxx-grs-ipv4-32 i686 Debian 4.0 ext3 base_dir: /var/dovecot-1.1.16 log_path: /var/dovecot-1.1.16/log/errors.log info_log_path: /var/dovecot-1.1.16/log/info.log ssl_disable: yes disable_plaintext_auth: no login_dir: /var/dovecot-1.1.16/login login_executable: /usr/local/dovecot-1.1.16/libexec/dovecot/imap-login login_user: ldovecotlogin mail_location: maildir:/var/vmail/%d/%n mail_debug: yes mail_plugins: quota imap_quota auth default: mechanisms: plain login user: nobody chroot: /var/dovecot-1.1.16 verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /etc/dovecot-1.1.16/dovecot-mysql-passdb.conf userdb: driver: sql args: /etc/dovecot-1.1.16/dovecot-mysql-userdb.conf socket: type: listen client: path: /var/postfix-2.5.1/private/auth.dovecot mode: 432 user: lpostfix group: lpostfix master: path: /var/dovecot-1.1.16/auth-master mode: 384 user: vmail group: vmail plugin: quota: maildir:Quota protocol lda { # Address to use when sending rejection mails. postmaster_address = postmaster@MyDomain # Hostname to use in various parts of sent mails, eg. in Message-Id. # Default is the system's real hostname. #hostname = # Support for dynamically loadable plugins. mail_plugins is a space separated # list of plugins to load. #mail_plugins = #mail_plugin_dir = /usr/lib/dovecot/lda # Binary to use for sending mails. #sendmail_path = /usr/lib/sendmail # UNIX socket path to master authentication server to find users. #auth_socket_path = /var/run/dovecot/auth-master log_path = /var/dovecot-1.1.16/log/delivery.log auth_socket_path = /var/dovecot-1.1.16/auth-master } # egrep '^deliver.test' info.log | tail deliver(test@MyDomain): Jun 24 13:28:35 Info: auth input: uid=5000 deliver(test@MyDomain): Jun 24 13:28:35 Info: auth input: gid=5000 deliver(test@MyDomain): Jun 24 13:28:35 Info: auth input: mail=maildir:/home/vmail/MyDomain/test deliver(test@MyDomain): Jun 24 13:28:35 Info: auth input: home=/home/vmail/MyDomain/test/home deliver(test@MyDomain): Jun 24 13:28:35 Info: auth input: quota=maildir:Quota deliver(test@MyDomain): Jun 24 13:28:35 Info: auth input: quota_rule=*:storage=1024 deliver(test@MyDomain): Jun 24 13:28:35 Info: auth input: quota_rule2=Trash:storage=50M deliver(test@MyDomain): Jun 24 13:28:35 Info: Home dir not found: /home/vmail/MyDomain/test/home deliver(test@MyDomain): Jun 24 13:28:35 Info: maildir: data=/home/vmail/MyDomain/test deliver(test@MyDomain): Jun 24 13:28:35 Info: maildir++: root=/home/vmail/MyDomain/test, index=, control=, inbox=/home/vmail/MyDomain/test deliver(test@MyDomain): Jun 24 13:28:35 Info: msgid=<290034.94281.qm(a)web24608.mail.ird.yahoo.com>: saved mail to INBOX deliver(test@MyDomain): Jun 24 16:59:57 Info: auth input: uid=5000 deliver(test@MyDomain): Jun 24 16:59:57 Info: auth input: gid=5000 deliver(test@MyDomain): Jun 24 16:59:57 Info: auth input: mail=maildir:/home/vmail/MyDomain/test deliver(test@MyDomain): Jun 24 16:59:57 Info: auth input: home=/home/vmail/MyDomain/test/home deliver(test@MyDomain): Jun 24 16:59:57 Info: auth input: quota=maildir:Quota deliver(test@MyDomain): Jun 24 16:59:57 Info: auth input: quota_rule=*:storage=1024 deliver(test@MyDomain): Jun 24 16:59:57 Info: auth input: quota_rule2=Trash:storage=50M deliver(test@MyDomain): Jun 24 16:59:57 Info: Home dir not found: /home/vmail/MyDomain/test/home deliver(test@MyDomain): Jun 24 16:59:57 Info: maildir: data=/home/vmail/MyDomain/test deliver(test@MyDomain): Jun 24 16:59:57 Info: maildir++: root=/home/vmail/MyDomain/test, index=, control=, inbox=/home/vmail/MyDomain/test deliver(test@MyDomain): Jun 24 16:59:57 Info: msgid=<542353.92671.qm(a)web24614.mail.ird.yahoo.com>: saved mail to INBOX # cat maildirsize 1048576S 1846384 10 Best regards, Fabrice

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[Dovecot] Quota_rules ignored
by A. Gideonse 24 Jun '09

24 Jun '09

Today I upgraded to version 1.1.16 of Dovecot (and Sieve), because I wanted to use mailbox quotas. I tried using the instructions on http://wiki.dovecot.org/Quota/1.1 and simular websites for 4 hours now, but it seems that all quota_rules are ignored. Also, whenever I use a '*' in my MySQL query I get the error: 'unknown quota backend'. With the following query the quota from the database is used (if value is not NULL), but the quota_rules are ignored once again: user_query = SELECT maildir AS home, 5000 AS uid, 5000 AS gid, CONCAT('maildir:storage=', quota) AS quota FROM mailbox WHERE username = '%u' Below is my configuration: # 1.1.16: /etc/dovecot/dovecot.conf # OS: Linux 2.6.24-19-virtual i686 Ubuntu 8.04.1 nfs log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s ssl_disable: yes disable_plaintext_auth: no login_dir: /usr/local/var/run/dovecot/login login_executable(default): /usr/local/libexec/dovecot/imap-login login_executable(imap): /usr/local/libexec/dovecot/imap-login login_executable(pop3): /usr/local/libexec/dovecot/pop3-login mail_privileged_group: mail mail_location: maildir:/data/vmail/%d/%n mail_debug: yes mmap_disable: yes dotlock_use_excl: no mbox_write_locks: fcntl mail_executable(default): /usr/local/libexec/dovecot/imap mail_executable(imap): /usr/local/libexec/dovecot/imap mail_executable(pop3): /usr/local/libexec/dovecot/pop3 mail_plugins(default): quota imap_quota mail_plugins(imap): quota imap_quota mail_plugins(pop3): quota mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 auth default: mechanisms: plain login debug: yes passdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: passwd userdb: driver: sql args: /etc/dovecot/dovecot-sql.conf userdb: driver: static args: uid=5000 gid=5000 home=/home/vmail/%d/%n allow_all_users=yes socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 384 user: vmail plugin: quota: maildir:User quota quota_rule: *:storage=1G quota_rule2: .Trash:storage=100M Any thoughts on how to solve this problem? Thanks in advance!

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[Dovecot] deliver does not update maildirsize
by ftriboix＠falcon-one.com 24 Jun '09

24 Jun '09

Hello, I have installed postfix 2.5.1 + dovecot 1.0.13 + MySQL and it all works perfectly. I use deliver as the local delivery agent and use IMAP only with maildir mailboxes. I am using virtual mailboxes. Now I wanted to introduce quotas, but I can't manage to make them work. Quota information is retreived from MySQL in userdb requests. I have noticed that the maildirsize file is not updated by deliver when a new mail comes in. I don't know if this is correct or not... It is updated though when I log in. But even then mails are still received without any kind of problem while the mailbox is well over the quota. I tried to add a "-v" option to deliver in postfix's master.cf to debug deliver, but it apparently does not like this option. Please find below my postfix and dovecot's configurations. Thank you very much for any help. NB: I removed some sensitive configuration option for this email NB2: The user in question has a quota of 1MB # postconf -n alias_maps = mysql:/etc/postfix-2.5.1/mysql-localalias.cf append_at_myorigin = no append_dot_mydomain = no biff = no command_directory = /usr/local/postfix-2.5.1/sbin config_directory = /etc/postfix-2.5.1 daemon_directory = /usr/local/postfix-2.5.1/libexec data_directory = /var/postfix-2.5.1/data debug_peer_level = 2 html_directory = /usr/local/postfix-2.5.1/doc/html mail_owner = lpostfix mail_spool_directory = /var/mail mailq_path = /usr/local/postfix-2.5.1/bin/mailq manpage_directory = /usr/local/postfix-2.5.1/man mydestination = $myhostname, localhost.$mydomain, localhost, $mydomain mydomain = MyHostingDomain myhostname = MyMachine.MyHostingDomain mynetworks_style = host myorigin = $mydomain newaliases_path = /usr/local/postfix-2.5.1/bin/newaliases queue_directory = /var/postfix-2.5.1 readme_directory = /usr/local/postfix-2.5.1/doc/text relay_domains = relayhost = [MyRelayHost] sample_directory = /etc/postfix-2.5.1 sendmail_path = /usr/sbin/sendmail setgid_group = lpostdrop smtp_sasl_auth_enable = yes smtp_sasl_password_maps = hash:/etc/postfix-2.5.1/tmp-sasl-pwd smtp_sasl_security_options = noanonymous smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_non_fqdn_hostname, reject_non_fqdn_sender, reject_non_fqdn_recipient, reject_unauth_destination, reject_unauth_pipelining, reject_invalid_hostname smtpd_sasl_auth_enable = yes smtpd_sasl_local_domain = $myhostname smtpd_sasl_path = private/auth.dovecot smtpd_sasl_security_options = noanonymous smtpd_sasl_type = dovecot syslog_facility = local0 unknown_local_recipient_reject_code = 550 virtual_alias_maps = mysql:/etc/postfix-2.5.1/mysql-alias.cf,mysql:/etc/postfix-2.5.1/mysql-global-alias.cf,mysql:/etc/postfix-2.5.1/mysql-email2email.cf virtual_gid_maps = static:5000 virtual_mailbox_domains = mysql:/etc/postfix-2.5.1/mysql-domain.cf virtual_mailbox_maps = mysql:/etc/postfix-2.5.1/mysql-mailbox.cf virtual_transport = dovecot virtual_uid_maps = static:5000 # cat master.cf # # Postfix master process configuration file. For details on the format # of the file, see the master(5) manual page (command: "man 5 master"). # # Do not forget to execute "postfix reload" after editing this file. # # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== smtp inet n - n - - smtpd #submission inet n - n - - smtpd # -o smtpd_tls_security_level=encrypt # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #smtps inet n - n - - smtpd # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_client_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #628 inet n - n - - qmqpd pickup fifo n - n 60 1 pickup cleanup unix n - n - 0 cleanup qmgr fifo n - n 300 1 qmgr #qmgr fifo n - n 300 1 oqmgr tlsmgr unix - - n 1000? 1 tlsmgr rewrite unix - - n - - trivial-rewrite bounce unix - - n - 0 bounce defer unix - - n - 0 bounce trace unix - - n - 0 bounce verify unix - - n - 1 verify flush unix n - n 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - n - - smtp # When relaying mail as backup MX, disable fallback_relay to avoid MX loops relay unix - - n - - smtp -o smtp_fallback_relay= # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - n - - showq error unix - - n - - error retry unix - - n - - error discard unix - - n - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - n - - lmtp anvil unix - - n - 1 anvil scache unix - - n - 1 scache dovecot unix - n n - - pipe flags=DRhu user=vmail:vmail argv=/usr/local/dovecot-1.0.13/libexec/dovecot/deliver -f ${sender} -d ${recipient} # dovecot -n # 1.0.13: /etc/dovecot-1.0.13/dovecot.conf base_dir: /var/dovecot-1.0.13 log_path: /var/dovecot-1.0.13/log/errors.log info_log_path: /var/dovecot-1.0.13/log/info.log ssl_disable: yes disable_plaintext_auth: no login_dir: /var/dovecot-1.0.13/login login_executable: /usr/local/dovecot-1.0.13/libexec/dovecot/imap-login login_user: ldovecotlogin mail_location: maildir:/var/vmail/%d/%n mail_debug: yes maildir_copy_with_hardlinks: yes mail_plugins: quota imap_quota auth default: mechanisms: plain login user: nobody chroot: /var/dovecot-1.0.13 verbose: yes debug: yes debug_passwords: yes passdb: driver: sql args: /etc/dovecot-1.0.13/dovecot-mysql-passdb.conf userdb: driver: sql args: /etc/dovecot-1.0.13/dovecot-mysql-userdb.conf socket: type: listen client: path: /var/postfix-2.5.1/private/auth.dovecot mode: 432 user: lpostfix group: lpostfix master: path: /var/dovecot-1.0.13/auth-master mode: 384 user: vmail group: vmail plugin: quota: maildir:storage=10240:ignore=Trash # cat dovecot-mysql-passdb.conf driver = mysql connect = [ --- snip --- ] default_pass_scheme = PLAIN-MD5 password_query = SELECT password FROM view_vuser WHERE email = '%u' AND active = 1 # cat dovecot-mysql-passdb.conf driver = mysql connect = [ --- snip --- ] default_pass_scheme = PLAIN-MD5 user_query = SELECT 5000 AS uid, 5000 AS gid, CONCAT("maildir:", mail) AS mail, CONCAT(mail, "/home") AS home, CONCAT("maildir:storage=", quota_mb * 1024, ":ignore=Trash") AS quota FROM view_vuser WHERE email = '%u' AND active = 1 # ls -l maildirsize -rw------- 1 vmail vmail 20 2009-06-23 08:47 maildirsize # cat maildirsize 1048576S 1846384 10

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[Dovecot] Dovecot Problem
by Robert Sloan 24 Jun '09

24 Jun '09

Every 2 or 3 days dovecot will not allow me to log into my IMAP server. It keeps requesting my username and password. If I do a /etc/init.d/dovecot restart it will start working again for a few days. I have dovecot set up to use Maildir. Dovecot Version: Not sure but it is the one that comes with Ubuntu 9.04 OS: Ubuntu 9.04 CPU: x86 Filesystem: Local EXT4 Dovecot Config: # 1.1.11: /etc/dovecot/dovecot.conf # OS: Linux 2.6.28-11-server i686 Ubuntu 9.04 log_timestamp: %Y-%m-%d %H:%M:%S protocols: imap imaps pop3 pop3s disable_plaintext_auth: no login_dir: /var/run/dovecot/login login_executable(default): /usr/lib/dovecot/imap-login login_executable(imap): /usr/lib/dovecot/imap-login login_executable(pop3): /usr/lib/dovecot/pop3-login mail_privileged_group: mail mail_location: maildir:~/Maildir mail_executable(default): /usr/lib/dovecot/imap mail_executable(imap): /usr/lib/dovecot/imap mail_executable(pop3): /usr/lib/dovecot/pop3 mail_plugin_dir(default): /usr/lib/dovecot/modules/imap mail_plugin_dir(imap): /usr/lib/dovecot/modules/imap mail_plugin_dir(pop3): /usr/lib/dovecot/modules/pop3 auth default: passdb: driver: pam userdb: driver: passwd Thanks.

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[Dovecot] Asked about Dovecot Logging
by Jose Luis Marin Perez 24 Jun '09

24 Jun '09

Dear Sirs, I was able to migrate successfully from Courier-Imap to Dovecot, Timo I appreciate your help. I have notices that the file /var/log/dovecot.log shows the following: dovecot: Jun 23 15:04:05 Info: imap-login: Login: user=<dtoledo>, method=PLAIN, rip=172.16.10.15, lip=172.16.10.19 dovecot: Jun 23 15:04:06 Info: imap-login: Login: user=<abonilla>, method=PLAIN, rip=172.16.10.14, lip=172.16.10.19 dovecot: Jun 23 15:04:06 Info: IMAP(abonilla): Disconnected: Logged out bytes=59/566 dovecot: Jun 23 15:04:06 Info: imap-login: Login: user=<slopez>, method=PLAIN, rip=172.16.10.14, lip=172.16.10.19 dovecot: Jun 23 15:04:06 Info: IMAP(slopez): Disconnected: Logged out bytes=59/567 dovecot: Jun 23 15:04:06 Info: IMAP(dtoledo): Disconnected: Logged out bytes=1252/34481 dovecot: Jun 23 15:04:07 Info: imap-login: Login: user=<slopez>, method=PLAIN, rip=172.16.10.14, lip=172.16.10.19 dovecot: Jun 23 15:04:07 Info: IMAP(slopez): Disconnected: Logged out bytes=59/567 dovecot: Jun 23 15:04:07 Info: IMAP(framirez): Disconnected: Logged out bytes=1252/34041 dovecot: Jun 23 15:04:08 Info: imap-login: Login: user=<mgomez>, method=PLAIN, rip=172.16.10.14, lip=172.16.10.19 dovecot: Jun 23 15:04:10 Info: IMAP(mgomez): Disconnected: Logged out bytes=1805/66570 dovecot: Jun 23 15:04:13 Info: imap-login: Login: user=<curibe>, method=PLAIN, rip=172.16.10.14, lip=172.16.10.19 dovecot: Jun 23 15:04:15 Info: IMAP(curibe): Disconnected: Logged out bytes=749/351591 Given that there are several domains hosted on the server, how can I configure Dovecot to the log file shows the full user name. Example: user=<user1(a)dominio1.com> user=<user2(a)dominio2.com> Thanks Jose Luis _________________________________________________________________ Invite your mail contacts to join your friends list with Windows Live Spaces. It's easy! http://spaces.live.com/spacesapi.aspx?wx_action=create&wx_url=/friends.aspx…

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[Dovecot] Deliver, sieve and duplicate message
by jean-Noël Chardron 24 Jun '09

24 Jun '09

Hello, Some users subscribe to several mailing lists which causes them to have the same message several times what they do not want . Today we use procmail as delivery agent to discard duplicate message, we want to migrate to dovecot deliver + sieve I read a previous post about the duplicate messages : http://www.dovecot.org/list/dovecot/2007-March/021085.html But I do not understand if this feature exists and how to activate Some explanations or documentation would be welcome. thank you, -- Jean-Noel Chardron

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